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Added 1 hour ago
T
Staff Software Engineer
Twilio
Remote, Canada
- Full-time
- Remote
As a Staff Software Engineer (P4), you will be a key technical leader for a platform that processes millions of requests. You will build innovative solutions while working closely with…
Added 1 hour ago
S&
Mechanical Engineer 2 - Nuclear
Sargent & Lundy
Toronto, ON · North York, ON
- Full-time
Added 2 hours ago
KC
Senior Embedded Software Designer
Kepler Communications Inc.
Toronto, ON
- Full-time
…we’re committed to creating an environment where you can grow, lead, and make a global…
Added 2 hours ago
B
Building Enclosure Engineer
BPA
Ottawa, ON · Kanata, ON
- Full-time
You will lead and mentor team members, supporting their growth into capable, productive, and valued professionals.
Added 2 hours ago
S&
Senior Mechanical Engineer 1 - Nuclear
Sargent & Lundy
Toronto, ON · North York, ON
- Full-time
Added 3 hours ago
GM
2027 Winter Co-op Infotainment Software Developer
General Motors
Markham, ON
- Full-time
Our Infotainment team is hiring a software engineer to design and develop software in our Android based Infotainment system. You'll be part of a team working on cutting-edge software…
Added 4 hours ago
ST
Intermediate Electrical Engineer
Saltworks Technologies
Richmond, BC
- $80,000 to $100,000 CAD / year
- Full-time
Saltworks is a 2025 Technology Fast 50 company and EY Entrepreneur of the Year award winner. We lead our industry in adopting and developing AI across our products, projects, and…
Added 7 hours ago
M
Principal Software Engineer
Microsoft
Vancouver, BC
- Full-time
As a Principal Software Engineer, you will provide technical leadership for enabling and optimizing frontier-scale AI models on Microsoft AI accelerators. You will work across hardware…
Added 7 hours ago
S
Structural Engineer
SYSTRA
Montreal, QC
- Full-time
Reporting to the Design Manager of each respective station (with a technical reporting relationship to the Systemwide Lead), within the Co-Development Phase of the ALTO programme, the…
Added 9 hours ago
P
Senior Software Engineer- Wireless (Contract)
Photon-IV
Canada
- Full-time
The Senior Software Engineer- Wireless is a contract hybrid role based in Canada, with a mix of on-site collaboration and work-from-home flexibility. This role is responsible for leading…
Added 9 hours ago
D
Senior Privacy Engineer
DuckDuckGo
Remote, Canada
- $178,500 USD / year
- Full-time
- Remote
Ability to lead and collaborate on high-impact and complex projects from proposal through post-mortem.
Added 11 hours ago
MA
Solutions Engineer
Mosaic AI
Toronto, ON
- Full-time
We’re hiring a Solutions Engineer to own the technical and operational success of our customers from pre-sale through post-sale. This is a full-lifecycle role: you’ll run POVs, lead…
Added 11 hours ago
HT
Staff Software Engineer, AI
Hudson Talent Solutions
Toronto, ON
- Full-time
We're seeking a Staff Software Engineer, AI to help lead the design, development, and scaling of enterprise AI solutions at Thomson Reuters.
Added 13 hours ago
EI
Software Development Manager
EBlock Inc.
Canada
- $160,000 to $180,000 CAD / year
- Full-time
We are looking for a hands-on Software Development Manager to lead one of our engineering teams within EDealer, reporting to the Sr. Director of Product and Engineering. This is a role for…
Added 16 hours ago
S
Patient Experience iCare Exchange Integrations Engineer
Sanofi
Toronto, ON
- Full-time
Position Title: Patient Experience iCare Exchange Integrations Engineer
Added 17 hours ago
DC
Senior Water Resources Engineer
Dillon Consulting Limited
Guelph, ON · Hamilton, ON · Kingston, ON · Kitchener, ON · Oakville, ON · Toronto, ON · Windsor, ON · North York, ON
- Full-time
Dillon's Water Resources team is seeking a Senior Water Resources Engineer to become an integral part of our multidisciplinary group of professionals. This is your chance to dive into…
Added 17 hours ago
P
Senior Advisor
PTAG
Burnaby, BC
- Contract
Lead the hands-on rewrite and refresh of technical specifications, guide specifications, and engineering design standards across utilities infrastructure (water, wastewater, civil,…
Added 17 hours ago
CI
Lead Engineer, Active Equities, Public Markets Technology
CPP Investments | Investissements RPC
Toronto, ON
- Full-time
As Lead Software Engineer, Active Equities Technology, you will provide technical leadership in designing, developing, deploying, and supporting technology solutions that enable the Active…
Added 18 hours ago
R
Senior Director, Program Delivery
RBC
Toronto, ON
- Full-time
…Engineering & Delivery, the Senior Director, Program Delivery will lead the strategic planning, execution, and governance of large-scale AI solution delivery programs across RBC's…
Added 18 hours ago
R
Senior AI/ML Engineer
RBC
Toronto, ON
- Full-time
…various departments, including Risk, Finance, HR, and more. We lead the development of digital tools and platforms to enhance collaboration and are known for our culture of innovation,…
Added 18 hours ago
R
Staff Cloud Security Engineer (Global Security)
RBC
Vancouver, BC · Toronto, ON
- Full-time
…across all tenants. In this role as a Staff Cloud Security Engineer, you will play a crucial role in developing innovative solutions to enhance RBC's Cloud Security posture. You will also…
Added 18 hours ago
R
Lead Full Stack Developer
RBC
Toronto, ON
- Full-time
A Lead Full Stack Developer is responsible for designing, developing and maintaining legacy and "Cloud First" applications written primarily in C# and focused on .Net Core and cloud…
Added 20 hours ago
M
Principal Software Engineer
Microsoft
Vancouver, BC
- Full-time
As a Principal Software Engineer, you will provide technical leadership for enabling and optimizing frontier-scale AI models on Microsoft AI accelerators. You will work across hardware…
Added 21 hours ago
L
Principal Engineer - Retail Systems
lululemon
Vancouver, BC
- Full-time
As a Principal Engineer, you will define the technical vision and implementation approach for major technology initiatives across lululemon’s global retail systems landscape. You will serve…
Added 21 hours ago
S
Technical Specifications Coordinator
SYSTRA
Montreal, QC
- Full-time
…project controls, the Technical Specifications Coordinator will lead the development, coordination, integration, and quality assurance of technical specifications across the High-Speed Rail…

Microsoft

Principal Software Engineer

Vancouver, BC, Canada

Full-time

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Job details

Job type: Full-time
Posting language: English
Posted: Oct 2, 2026

Original job description

Overview

Do you want to help shape the future of AI infrastructure and influence the hardware-software co-design decisions powering Microsoft's next generation of AI platforms?

Join the Systems Planning and Architecture (SPARC) team within Azure Hardware Systems and Infrastructure (AHSI), where we are building infrastructure for some of the world's most demanding AI workloads. Our team drives model enablement, performance optimization, and hardware-software co-design across Microsoft's custom AI accelerators and cloud-scale AI systems.

As a Principal Software Engineer, you will provide technical leadership for enabling and optimizing frontier-scale AI models on Microsoft AI accelerators. You will work across hardware architecture, compilers, kernels, frameworks, runtimes, and model teams to define performance strategies, influence future platform investments, and improve training and inference efficiency at scale. This opportunity places you at the intersection of AI systems, distributed computing, and accelerator architecture, with the ability to influence technical direction across multiple engineering organizations.

This role is flexible and offers a hybrid work model with three days per week in the office.

Microsoft's mission is to empower every person and every organization on the planet to achieve more. As employees, we come together with a growth mindset, innovate to empower others, and collaborate to achieve our shared goals. Each day we build on our values of respect, integrity, and accountability to create a culture of inclusion where everyone can thrive at work and beyond.

Responsibilities

Lead technical strategy for enabling and optimizing frontier-scale AI models across Microsoft AI accelerators and cloud-scale AI infrastructure.
Architect and optimize AI systems across hardware, compilers, kernels, frameworks, runtimes, and distributed infrastructure to improve training and inference performance.
Partner with hardware architecture teams on hardware-software co-design, influencing accelerator features, memory systems, interconnects, execution models, and future silicon roadmaps.
Drive performance optimization across kernels, communication, memory movement, quantization, attention, mixture-of-experts (MoE), and other critical AI workloads.
Architect distributed training and inference solutions spanning large accelerator clusters, including parallelism, communication, memory management, and scaling strategies.
Drive model enablement and performance improvements across AI frameworks and inference technologies such as PyTorch, Triton, vLLM, SGLang, and related ecosystems.
Lead architecture reviews and complex cross-organization technical initiatives, build alignment across engineering teams, mentor engineers, and provide technical recommendations that inform Microsoft's long-term AI infrastructure strategy.

Qualifications

Required/minimum qualifications

Bachelor's Degree in Computer Science or related technical field AND 6+ years technical engineering experience with coding in languages including, but not limited to, C, C++, C#, Java, JavaScript, or Python OR equivalent experience.

Experience partnering with hardware architecture teams on hardware-software co-design, accelerator enablement, or performance optimization.

Other Requirements

Ability to meet Microsoft, customer, and/or government security screening requirements, including Microsoft Cloud Background Check requirements.

Preferred Qualifications

7+ years of experience developing and optimizing high-performance AI systems, kernels, or accelerator software using CUDA, ROCm, Triton, or similar programming models.
Deep experience optimizing large-scale AI workloads, including attention, mixture-of-experts (MoE), quantization, FP8, KV-cache management, memory efficiency, or related techniques.
Experience enabling and optimizing large language, reasoning, multimodal, or other foundation models on AI accelerators.
Experience designing distributed training or inference systems using techniques such as tensor, pipeline, expert, or sequence parallelism.
Deep knowledge of AI frameworks such as PyTorch and experience optimizing production-scale training or inference workloads.
Demonstrated experience leading complex technical initiatives across multiple engineering organizations and influencing technical strategy beyond immediate team boundaries.
Publications, patents, open-source contributions, or other recognized contributions in AI systems, distributed computing, machine learning infrastructure, or hardware acceleration.

Software Engineering IC5 - The typical base pay range for this role across the U.S. is USD $142,800 - $274,800 per year. There is a different range applicable to specific work locations, within the San Francisco Bay area and New York City metropolitan area, and the base pay range for this role in those locations is USD $188,000 - $304,200 per year.

Certain roles may be eligible for benefits and other compensation. Find additional benefits and pay information here:
https://careers.microsoft.com/us/en/us-corporate-pay

This position will be open for a minimum of 5 days, with applications accepted on an ongoing basis until the position is filled.

Microsoft is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to age, ancestry, citizenship, color, family or medical care leave, gender identity or expression, genetic information, immigration status, marital status, medical condition, national origin, physical or mental disability, political affiliation, protected veteran or military status, race, ethnicity, religion, sex (including pregnancy), sexual orientation, or any other characteristic protected by applicable local laws, regulations and ordinances. If you need assistance with religious accommodations and/or a reasonable accommodation due to a disability during the application process, read more about requesting accommodations.

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More about this job

Responsibilities

The Principal Software Engineer will lead the technical strategy for optimizing frontier-scale AI models across Microsoft's custom AI accelerators and cloud-scale infrastructure. They will collaborate with hardware architecture teams on co-design initiatives and drive performance improvements across kernels, frameworks, and distributed systems.

Requirements

Candidates must hold a Bachelor's degree in a technical field and possess at least 6 years of engineering experience with proficiency in languages like C, C++, or Python. Strong expertise in hardware-software co-design, AI accelerator enablement, and performance optimization for large-scale workloads is required.

Skills

AI Infrastructure
Hardware-Software Co-design
Performance Optimization
Distributed Computing
Accelerator Architecture
C++
Python
CUDA
ROCm
Triton
PyTorch
Large Language Models
Quantization
Distributed Training
System Architecture
Technical Leadership

Benefits

Health Insurance
Retirement Plan
Paid Time Off
Professional Development

Visa sponsorship

Not detected in the job text

Keywords

AI Infrastructure
Hardware-Software Co-design
Azure
Performance Optimization
Distributed Computing
Accelerator Architecture
C
C++
Python
CUDA
ROCm
Triton
PyTorch
vLLM
SGLang
Large Language Models
Quantization
FP8
KV-cache
Distributed Training
System Architecture
Technical Leadership
Cloud Infrastructure
Silicon Roadmaps
Machine Learning
Software Engineering
AI Frameworks
Parallelism
Memory Management
Kernel Optimization

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